[PATCH 1/2] drm/vmwgfx: Don't put resources with invalid id's on lru list

[Thomas Hellstrom]

The evict code may try to swap them out causing a BUG in the destroy
function.

Signed-off-by: Thomas Hellstrom <thellstrom at vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob at vmware.com>
Cc: stable at vger.kernel.org
---
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 0e67cf4..37fb4be 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -970,7 +970,7 @@ void vmw_resource_unreserve(struct vmw_resource *res,
 	if (new_backup)
 		res->backup_offset = new_backup_offset;
 
-	if (!res->func->may_evict)
+	if (!res->func->may_evict || res->id == -1)
 		return;
 
 	write_lock(&dev_priv->resource_lock);
-- 
1.7.10.4